Critical Terminal2Shell flaw grants instant shell on all OS
Original title: Terminal2Shell: Critical flaw grants instant shell access on every major OS
Design flaw in every terminal emulator on macOS Linux Windows and more allows attackers to gain instant shell with full user privileges with no patches available.
Terminal2Shell is a design-level vulnerability in terminal emulators that spawns a shell on launch. Attackers gain arbitrary command execution with the logged-in user's full privileges. The flaw affects all major OS and terminal apps with active exploitation reported across billions of devices.
- Shell executes any typed command including file deletion and software installation
- Affects gnome-terminal Konsole xterm iTerm2 Ghostty Warp cmd.exe PowerShell and more
- No vendor patch available
- Proof of concept shows direct keyboard input execution
- Observed in real attacks with root escalation possible only if user password known
Impact: Instant arbitrary command execution with user privileges
| Product | Affected |
|---|---|
| Apple macOS | all |
| Linux all distributions | all |
| Microsoft Windows | all |
| BSD FreeBSD OpenBSD | all |
| Microsoft VS Code | all |
- 1.Do not open terminals
- 2.Set SHELL=/bin/false
- 3.Close terminals immediately after opening
From the original article
3 min read at terminal2shell.com
ACTIVE EXPLOITATION IN THE WILD · ESTIMATED 2+ BILLION AFFECTED DEVICES · NO PATCH AVAILABLE Terminal2Shell is a design-level vulnerability in terminal emulators. When a terminal is launched, it immediately spawns a shell process and connects it directly to the user's keyboard. From there, the attacker can issue arbitrary commands with the full privileges of the logged-in user.
By terminal2shell.com via whjms · terminal2shell.com
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